[dovetail65]

We just purchased a 2018 Pacifica and there was an ESS light on the instrument cluster that I did not understand. The salesman told me to bring the vehicle back on the next business day and their service department would fix it. They ended up replacing the auxiliary battery and said the light would go out when the auxiliary battery fully charged up. It is been 3 days and 160 miles later and the light is still on and the engine is not turning off at stop lights.
This is not a big deal, but it is a feature we paid for and is not working on the vehicle.
This appears to be a problem where Chrysler has not distributed the necessary information to the dealers. It appears they do not know how to fix the problem. This type of thing usually is not the fault of the repair technician, it is the fault of the corporation not backing up the techs with an engineering contact to solve new problems seen out in the field.
How do we get this fixed?

Are you positive you don't have the ESS disabled on the dash right underneath the radio. Try turning on and off the disable button several times through out the day.

By the way many here would give their right arm for the car not to turn off at the lights.

If you are using the AC a lot your Aux battery may never get charged up enough for it to work, if you are in a very hot area it won't work either.

I do think your techs are wrong, becasue upon putting in a new good Aux battery that light turns right off, waiting for it to charge is wrong becasue the techs wouldn't know if their was actually another cause to the problem. If there is another issue they would not know about it so the techs should never of let you bring it home like that in the first place! My bet, the main battery is the culprit(bad) or one of the wires or connection to one of the batteries. Or the new Aux batter is bad!

If you drive that car 45 minutes with no accessories on that aux battery will be fully charged, period. Bring it back and dont take it back if they try the old drive it unto it s charge becasue that is 100% wrong. Agsin, they cant possibly know the issue is repaired sending you off like that! They should of simply charged the Aux battery themselves before giving you the car back.


I dont take a car back with error lights still on, that's like me bringing in the car with a check engine light on and them sending me home with the check engine light on saying it's going to miraculously repair itself. Nope, not a big bad corporation, just not a good technician or shop.